Pramudiyanto, F. Ma'Arif
A concrete structure reinforced with reinforcing bars formed an important part on current infrastructures. The high compressive strength of concrete combined with a high tensile strength of steel give an ideal composite material which offer a wide range of application within civil engineering structures. The aim of this research is to observe the corrosion process on reinforcing bars of reinforced concrete structure which is made by local aggregates which have the compressive strength ranged from 25 to 30 MPa, with different quarry in the area of Special Region of Yogyakarta. The ASTM G-109 and Florida Test of Method FM 5-522 are chosen to conduct this research. The test was conducted 45 to 60 days with following data to be taken: water salinity (pH), voltage reading relative difference, reinforcing bar's mass loss. The data processed to obtain corrosion current density (CCD) and corrosion rate (CR). The results as follow : (1) the voltage difference's reading on each specimens attempt to be similar, (2) the CCD on each specimens behave differently with relative differences of 1,68%, (3) the CR on each specimens behave differently with relative differences of 0,66%, (3) the specimens behave similarly regardless the differences between two of them. © Published under licence by IOP Publishing Ltd.
Department of Civil and Planning Engineering, State University of Yogyakarta, Indonesia
